I am putting Quantum Dice https://qdice.net up for auction starts at .75 BTC with bid increments of .05 BTC.

Auction ends 24 hours after the last bid. Site has made .54 BTC for the app owner in about 6 weeks time. I don't have the time to promote or advertise for it currently. Site costs 0 to run currently as it is hosted on github. I paid 1.1 BTC for it just a few weeks ago. If you have time to advertise and promote, this would be a good fit for you.